| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Étienne•Dagon | 
| Used name | Étienne•Dagon | 
| Born | 13 September 1960 in Biel/Bienne, Bern (SUI) | 
| Measurements | 179 cm / 74 kg | 
| Affiliations | Genève Natation 1885, Genève (SUI) | 
| NOC |  Switzerland | 
| Medals | OG | 
| Gold | 0 | 
| Silver | 0 | 
| Bronze | 1 | 
| Total | 1 | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1984 Summer Olympics | Swimming (Aquatics) |  SUI | Étienne Dagon | |||
| 100 metres Breaststroke, Men (Olympic) | 20 | |||||
| 200 metres Breaststroke, Men (Olympic) | 3 | Bronze | ||||
| 4 × 100 metres Medley Relay, Men (Olympic) | Switzerland | 7 | ||||
| 1988 Summer Olympics | Swimming (Aquatics) |  SUI | Étienne Dagon | |||
| 100 metres Breaststroke, Men (Olympic) | 27 | |||||
| 200 metres Breaststroke, Men (Olympic) | 13 | |||||
| 4 × 100 metres Medley Relay, Men (Olympic) | Switzerland | 9 |